1004550020 has 24 divisors (see below), whose sum is σ = 2161009368. Its totient is φ = 392019200.

The previous prime is 1004549983. The next prime is 1004550023. The reversal of 1004550020 is 200554001.

1004550020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 46895104 + 957654916 = 6848^2 + 30946^2 .

It is not an unprimeable number, because it can be changed into a prime (1004550023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 611711 + ... + 613350.

It is an arithmetic number, because the mean of its divisors is an integer number (90042057).

Almost surely, 2^1004550020 is an apocalyptic number.

1004550020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1004550020 is an abundant number, since it is smaller than the sum of its proper divisors (1156459348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1004550020 is a wasteful number, since it uses less digits than its factorization.

1004550020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225111 (or 1225109 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 1004550020 is about 31694.6370857910. The cubic root of 1004550020 is about 1001.5143788324.

The spelling of 1004550020 in words is "one billion, four million, five hundred fifty thousand, twenty".